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Please help with conversion long-time problem
Hello. I have a problem regarding conversion from a dv-avi export from premiere to an avi xvid. Please, before you redirect me to a thred that explains how to convert dv to xvid, please read my post out. I’m at the end of my thread.
Let me first explain why i need dv to xvid: i started work as a video editor at a newly formed media production company and i have an old IT specialist supervisor. All went fine untill i came to my first export. He wanted a small size avi file (AVI file, not wmv) to post on the net and to put it on a presentation cd. I exported a 30 min movie into a 55 mb wmv with adobe media encoder with a bitrate of 250 kb in a rez of 320×240. Good. But not the way he wants it. he wants an avi file of same or close size, with index, because the player he uses takes a long time to buffer when he skips ahead in time on that clip.
So i tried variations: from the 6 gb dv file to an avi xvid encode with the same specs as above (the other codecs i tried *cinepak and many others* i will not mention because they gave me the worst results), it turned out a miserable quality avi xvid…. of 250MB. not 55… so again, not good because of poor quality. I tried with 7 different programs from imtoo video converter to virtualdub to winavi to blaze media pro to total video converter, etc. nothing even close to under 200 mb that look good.
From the 55 mb wmv when i tried to convert it to smth else, surprise! from 55mb good qualiti i got a 350 mb xvid avi with the weirdest color changing from frame to frame phenomenon i have ever seen. Plus, between the noise, i could see that it was poor quality image too.
He then showed me a 143 MB xvid avi file that he ripped with imtoo dvd ripper from a 1 hour dvd, which was of christal clear quality. He wanted that result from me. I again tried every program i know with those characteristics, which i got from gspot analyzer (252 bitrare, xvid codec, 64bit audio), but nothing came close to the that quality or even that filesize. i got only 300mb or more. (just to test it, i got the same dvd and the same program and tried to rip it at the same specs, but i got an encoder error, so i backed off, because i already was losing ….not patience, but nerve…over this whole situation)
he won’t accept unindexed file formats, to him wmv dosn’t exist, he uses bsplayer (don’t know version) and he won’t change it, and he uses 1 year old codecs, updates once a year, because he says it is much healthier for the client. (he gives that player and that codec to his clients on the cd together with the clip)
Please, help me come to a good quality 320×240, under 100MB, .avi indexed solution, so that this man can be happy with him scrolling ahead in time and not having to wait for the clip to buffer, and to be of decent quality.
You guys are my last hope.
Thank you,
Sebastian PlamadealaSpecs:
Intel Quad q6600 processor
4 GB Ram
WinXP 64bit
BFG Nvidia Geforce 8800 GTS OC 640mb
Gigabyte n680sli dq6 mainboard
Adobe Premiere Pro CS3 -
6 Replies
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[tipul01] “Hello. I have a problem regarding conversion from a dv-avi export from premiere”
Whats the source footage format for dv-avi you made from Premiere?
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Your erratic file size results is probably due to not configuring video and audio bitrates and accepting some kind of defaults.
Why is your client such a piker with bitrate? A CD can hold 30 minutes of full res video at 1 mbps.
The tool you will need to compress video to Xvid is VirtualDub (free). You will need uncompressed video (not DV) as the source at 320 x 240 PAR=square.
In VirtualDub you will configure the audio codec (mp3) and the bitrate (64 kbps).
Then configure your target bitrate of 256 kbps for the Xvid compressor.
Also add a deinterlace filter.Using VirtualDub is not easy…I can help off line if needed.
A good support site is doom9.orgHere is a sample that I just made;
http://www.video2stream.com/xvid.avi -
Thank you for your responses.
My source is sd material, captured from a dv tape into dv type 2 or type 1, the default setting in premiere, not mpg or any other, just the default.
It’s not just that clip he will put on the cd. more than 5 clips, documents, it is a presentation cd, evenmade with an autorun.
Mike, thank you for your suggestion. I will try what you said, but i have to keep in mind the constant nagging of my supervisor, the “150 mb clear quality of an 1 hour dvd-rip” he made. To his mind, my 30 min clip size has to be around 70 mb.
The quality at least close.Surprisingly, the rip he made is of much better image quality then the example you gave me, mike. I will post tomorrow the specs from what gspot annalised.
I will still play around with settings from virtualdub, i just hoped anyone went through what i a going through and figured out a similar solution that might help me:).
I just think that this conversion/exporting stuff isn’t standard-ised just yet, and a comprehensive guide (including different often encountered file types ) isn’t even in development, it just leaves to everybody’s inspiration and former knowledge, but one such guide could be of benefit to us all.
Thanks again for your responses, i will post the info tomorrow (monday).
Thank you,
Sebastian Plamadala -
256 + 64 kbps should equal about a mB per minute.
The quality of compressed video is not only determined by the bitrate but the amount of motion (subject and camera panning). A talking head at 256 will look much better than my dancing girls. -
The clip that i have is a zone promotion clip, with camera pannings and lots of zooms, lots of motion…
(although, the rip he made is the exact same type of movie… this thing so complicated…)Still, why oh why does my wmv -adobe media encoder, pal 256 kb download preset- at 250 kb/sec and 64 audio is in size only 55 mb, incredibly smaller than any other format?
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Video compression is part black art, but the part that is straight forward is bitrate and the resulting file size. 320 kilobits (kbps) = 40 Kilobytes per second = 2400 kilobytes per minute = 2.4 megabytes per minute.
Remember, there are 8 bits to the byte and 4 bits per nibble.
If your resulting file is many times larger, then you have missed a setting.
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